(New-WA-lee)The ancient Aztec people of Mexico had in their beliefs vampiric sorcerers known as nanahualtin ("magicians"). A naualli (the singular spelling) was a human being who in addition to being able to cause a person to go insane, practiced his vampiric activities on children by first smothering them and then draining their blood. A naualli had the ability to shape-shift into an array of animals as well as being either a were-coyote or a werewolf.Source: Brinton, Nagualism, 57; Soustelle, Daily Lifeof the Aztecs, 192; Spence, Magic and Mysteries of Mex-ico, 67­70, 87­95; Summers, Vampire: His Kith and Kin, 264